Finding the Third Proportional to 99,672 and 154,490

Step by Step Solution

1. Step 1: Write the proportion equation
   99,672 : 154,490 = 154,490 : x
2. Step 2: Convert to fraction form
   99,672/154,490 = 154,490/x
3. Step 3: Cross multiply
   99,672x = 154,490 × 154,490
4. Step 4: Simplify right side
   99,672x = 23,867,160,100
5. Step 5: Solve for x
   x = 23,867,160,100/99,672
6. Step 6: Final answer
   x = 239,457.02